Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Quartus II 8.0 web edition : multi processor

Hi,

In Quartus II 8 web edition, it seems there is no multi processor support anymore. can you confirm that ?

In Quartus II 7 Web Edition, there is.

It's a question before downloading 1.2 GB :p .

Thanks.

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    That is correct, parallel compilation was available in the web edition until 7.2 but is no longer supported by the web edition as of 8.0.

    Cheers,

    Adrian Ludwin

    Altera Corp.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    Thanks for clearing this up. I guess asking "why" is useless.

    What about multiple cores? Does a dual core CPU have benefit over single cores in web editions? 7.2? 8.0?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    --- Quote Start ---

    What about multiple cores? Does a dual core CPU have benefit over single cores in web editions? 7.2? 8.0?

    --- Quote End ---

    We use the term "parallel compilation" to cover both multiple cores on a chip and multiple chips on a board, so dual-core CPUs will not show any benefit due to parallelism as of 8.0 (parallel compilation was still enabled in 7.2 web edition).

    However, Intel's dual-core processors generally have a large shared L2 cache - 6MB on the latest models - which Quartus will happily use. In addition, if you're sweeping multiple options to try to close timing (eg by using DSE), you'll still be able to use those extra cores to increase your throughput.

    Cheers,

    Adrian Ludwin

    Altera Corp.